Wood-shaping-machine guard



(No Model.)

G. RUDOLPH, RUDERSDDRF, G. LEMLEY & Q E. SIEGPRIED.

WOOD SHAPING MACHINE GUARD. v

No. 415,127. Pgls ented Nov. 12, 1889.

I UNITED STATES PATE T OFFICE.

CHARLES RUDOLPH, GUSTAV RUDERSDORF, GOTTLIEB LEMLEY, AND HENRYSIEGFRIED, OF YOUNGSTOWN, OHIO.

WOOD-SHAPING- MACHINE GUARD.

SPECIFICATION forming part of Letters Patent No. 415,127, dated November12, 1889.

Application filed March 23, 1888.

To all whom it may concern.-

Be it known that We, CHARLES RUDOLPH, GUSTAV RUDERsDoRF, GOTTLIEBLEMLEY, and HENRY SIEGFRIED, citizens of the United States, residing atYoungstown, in the county of Mahoning and State of Ohio, have inventedcertain new and useful Improvements in \Vood-Shaping-Machine Guards; andwe do hereby declare the following to be a full, clear, and exactdescription of our invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, which form part of this specification.

Our invention relates to that class of woodshaping-machine guards thatare used with machines having knives set in a drum or collar attached toa vertical rotating spindle to protect from accident the hands of theoperator by means of a shield over the unused parts of the knives; andits object is to provide a means whereby a guard may be fitted tospindles of different sizes and be readily adjustable verticallythereon, and at the same time protect the screw-threads on the spindlefrom injury from the clamp-screws employed to hold the guard in theadjusted position. We accomplish this object by the mechanismhereinafter described, and illustrated in the drawings, in which- Figure1 is a vertical central sectional view of the guard A in place overportions of the knives k 70 of a wood-shaper, shown in such parts as arenecessary to illustrate our device. Fig. 2 is a top view of the guard A,and Fig. 3 is a side elevation of the same.

There is shown in the drawings a table d, having a perforation orpassage h for an upright spindle Z. Below the passage h there is aboxing c, forming a guiding-bearing for the said spindle. Above thetable the spindle is provided with a fixed collar 00, supporting aknife-head 70, which may be of any suitable shape or construction and isheld in position on the spindle by a smooth sleeve vb. This sleeve b inturn is firmly clamped against the upper side of the said knife-head bymeans of a nut m, which is screwed on the threaded I upper end of thespindle, as shown.

In order to protect the workman from the Serial No. 268,208. (No model.)

knives, we provide a guard, which, as shown, consists of a cylinder A,slightly larger than the knives, so as to cover them, and this cylinderis closed at one end, as shown at 0;, except that the said endis piercedby a perforation for the passage of the sleeve 19, before described.Surrounding the said perforation is an upwardly extending flange n,through which extend set-screws s. The cylinder A (and also its closedend) is provided with perforations e for the escape of dust when theapparatus is in operation.

It will be evident from the foregoing that the cylinder or guard A maybe readily adjusted to expose a greater or less portion of the knives,as the character of the work may demand. Such adjustment may be accon1plished by loosening the screws 8 and moving the guard up or down thesleeve 1) to the desired position, after which the screws may betightened. It will thus be seen that the sleeve serves to hold theknives in place to adapt the guard to any size of spindle, since sleevesof different thicknesses may be used with the 7 5' same guard, and thatthe threads on the spin dle are thoroughly protected from the screws 3by the said sleeve.

Having described the invention, what we claim is 1. The combination,with the spindle and knives thereon,of the sleeve 1) and the guard A,consisting of a cylinder with one end partially closed and provided witha central flanged perforation for the passage of said 8 5 sleeve, thesaid flange carrying set-screws, substantially as and for the purposespecified.

2. The combination, with the spindle and knives thereon, of thesleeve 1) on the spindle above the knives and a guard for the knives 9oadjustable on said sleeve, substantially as described.

In testimony whereof we hereunto affix our signatures in the presence oftwo witnesses.

CHARLES RUDOLPH. GUSTAV RUDERSDORF. GOTTLIEB LEMLEY. HENRY SIEGFRIED.

Witnesses:

HORACE SMITH, ELEANOR WELLS.

